*{
  margin: 0;
  padding: 0;
  list-style: none;
}
.header{
  text-align: center;
  line-height: 50px;
  border-bottom: 1px solid #ccc;
}
.main{
  .left{
    display: flex;
    margin-top: 10px;
    .avatar{
      img{
        width: 50px;
        height: 50px;
        border-radius: 50%;
      }
    }
    .info{
      line-height: 50px;
      margin-left: 10px;
    }
  }
  .right{
    display: flex;
    flex-direction: row-reverse;
    .avatar{
      img{
        width: 50px;
        height: 50px;
        border-radius: 50%;
      }
    }
    .info{
      line-height: 50px;
      margin-right: 10px;
    }
  }
}
.fotter{
  position: fixed;
  border-top: 1px solid #ccc;
  border-bottom: 1px solid #ccc;
  bottom: 50px;
  left: 0;
  width: 100%;
  display: flex;
  height: 46px;
  .text{
    flex: 1;
    height: 100%;
  }
}